The files for the module as contained in the zip file you downloaded are as follows:
/modules/gateway/PayFast/config.xml /modules/gateway/PayFast/gateway.class.php /modules/gateway/PayFast/payfast.log /modules/gateway/PayFast/payfast_common.inc /modules/gateway/PayFast/admin/index.inc.php /modules/gateway/PayFast/language/module.definitions.xml /modules/gateway/PayFast/skin/admin/index.tpl
In order to install the module in your CubeCart installation, you need to ensure that these files are transferred to your CubeCart installation exactly as they are in the zip file.
This will not overwrite anything which exists already (besides an already existing PayFast module).
To upload these files manually, do the following:
Then follow the rest of the installation instructions.